package com.waymap.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.ThreadPoolExecutor;

/**
 * Created by tim on 2020/7/22.
 */
@SuppressWarnings("all")
@Configuration
@EnableAsync
public class AsyncConfig {
    //核心线程数
    @Value("${wms.core.poolsize}")
    private int corePoolSize;
    //最大线程数
    @Value("${wms.max.poolsize}")
    private int maxPoolSize;
    //队列容量
    @Value("${wms.queue.capacity}")
    private int queueCapacity;
    //接收报文线程活跃时间（秒）
    @Value("${wms.keepAlive.seconds}")
    private int keepAliveSeconds;
    //接收报文默认线程名称
    @Value("${wms.thread.name.prefix}")
    private String threadNamePrefix;

    @Bean(name = "${wms.pool.name}")
    public ThreadPoolTaskExecutor bookTaskExecutor() {
        //newFixedThreadPool
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        // 设置核心线程数
        executor.setCorePoolSize(corePoolSize);
        // 设置最大线程数
        executor.setMaxPoolSize(maxPoolSize);
        // 设置队列容量
        executor.setQueueCapacity(queueCapacity);
        // 设置线程活跃时间（秒）
        executor.setKeepAliveSeconds(keepAliveSeconds);
        // 设置默认线程名称
        executor.setThreadNamePrefix(threadNamePrefix);
        // 设置拒绝策略
        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
        // CALLER_RUNS：不在新线程中执行任务，而是由调用者所在的线程来执行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        // 等待所有任务结束后再关闭线程池
        executor.setWaitForTasksToCompleteOnShutdown(true);
        executor.initialize();
        return executor;
    }




}
